I'd really recommend wood shafts. After shooting wood then shooting aluminum, aluminum arrows seem way to loud. I know they work, but too loud for my comfort. If you really wnat to go with aluminum, then no one can nay you. I really doubt you'll find an aluminum shaft that'll work for a 45# recurve and a 65# compound. When I'd my 45# recurve I used wood shafts in the 50-55# spine weight. They're also the same shafts that shoot well out of my 53# longbow. I also shot 2016s out of my recurve that seemed to work well, however they're junk out of the longbow. That might be why they're so loud; quien sabe? Whichever way you go, get a few arrows of the different sizes you're considering and bare shaft tune. You can find some info about it a
www.bowmaker.net I reckon you could use 50-55# shafts with a 125 gr. head, but you can try some other groups also; maybe 45-50# and 55-60#. See which ones work best and go with it. My knowledge is no doubt limited, but this is what I've learned from reading and shooting. Hope you've fun with your bow and find some good arrows.
God bless,
Brandan